Computer rendering of a possible roundabout at the Crowell Road/Route 28 intersection.

CHATHAM – Selectmen will hear an update next Tuesday on plans to upgrade the busy intersection at Route 28 and Crowell Road.

Consultant Howard/Stein-Hudson (HSH) is seeking input in developing the pre-25 percent design concept for the project, and will present updated information on existing conditions and potential alternatives at the Aug. 15 meeting. The session will kick off a 30-day informal public comment period, after which selectmen will schedule another meeting to discuss comments and design refinements before voting on a preferred alternative to forward to the Massachusetts Department of Transportation.

The project is currently included on the Barnstable County Transportation Improvement Program for funding in 2021. Preliminary estimates puts the cost of the work at $2,784,000; all but $556,800 of that will come from federal highway funds.

A number of previous discussions have been held about the intersection, where four roads converge: Main Street (Route 28), Crowell Road, Queen Anne Road and Depot Road. Officials have pointed out numerous deficiencies at the intersection, including a lack of turning lanes and pedestrian amenities, grade changes and old traffic signal. During the last public discussion in 2015, options for improvements included upgraded signaling, realignment of the roadways and a roundabout.

Upgrading the intersection is in line with the town's comprehensive plan, which recommends changes to the intersection.

A proposed schedule for the project dated June 2016 calls for selectmen to hold the second meeting prior to submission of the 25 percent design plans by early to mid October. Submission of the 25 percent design plans would follow in January or February.

More information on the project can be found at its website, www.chathamcrowellroad.info. The Aug. 15 meeting begins at 5 p.m. at the annex on George Ryder Road. The meeting will be streamed live on the town's website and available for on-demand viewing afterward.